require in styles.rb

Can not organize the styles by the prop idea they are in. I want the styles file to be

require "main_style"


and main_style.rb is somewhere in the search path, looking like:

main {
  # some style
}

I get the error:

Exception in thread "main" /Users/paulwpagel/Projects/todont/styles/main_style.rb:1: ./styles.rb:1: undefined method `main' for main:Object
    ----- ./styles.rb lines 1 - 1 -----
    * 1: require File.expand_path(File.dirname(__FILE__) + "/styles/main_style")
 (Limelight::BuildException)
    from /Users/paulwpagel/Projects/todont/styles/main_style.rb:27:in `require'
    from /Users/paulwpagel/Projects/limelight/jruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
    from (eval):1:in `load_styles'
    ...internal jruby stack elided...

when I try that now